I believe its around 200 and it can be won very fast. I just played against the Center on the Celtics, he is rated like a 40 with 33 speed. Just turbo for easy quick dunk. This all take less than 10 minutes.

My way is pretty 'lame' but you know what, they absolutely made VC too difficult to get in this game, especially in My Career, so here is what i do:

Play a quick match game with 12 minute quarters/HOF/Sim but turn all the NBA rules off. This basically allows me to inbound the ball and just let the player sit their until the quarter is over. You get 750 VC per game and it takes about 50 minutes. I did the match and it is faster than doing a bunch of 1 minute quarter games (not to mention you have to be paying more attention to the game when doing 1 minute quarters so it's more work on your part.)